CN101793491A - Universal shaft threaded connection directional assembly gauge for screw drilling tool - Google Patents
Universal shaft threaded connection directional assembly gauge for screw drilling tool Download PDFInfo
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- CN101793491A CN101793491A CN 201010122662 CN201010122662A CN101793491A CN 101793491 A CN101793491 A CN 101793491A CN 201010122662 CN201010122662 CN 201010122662 CN 201010122662 A CN201010122662 A CN 201010122662A CN 101793491 A CN101793491 A CN 101793491A
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Abstract
The invention discloses a universal shaft threaded connection directional assembly gauge for a screw drilling tool, which is applied to detecting the assembly of a universal shaft assembly for the screw drilling tool for petroleum drilling. A plug gauge comprises a cylindrical dial gauge, and external threads are formed on the other end face of the dial gauge. A cycle of scales are arranged on an external surface of the dial gauge cylinder, the number of the scales is 72, and a corresponding scale serial number is correspondingly arranged on each scale. Internal threads are formed on a ring gauge; two cycles of upper and lower scales are arranged parallelly on the external surface of the circular ring body of the ring gauge and are in the same line; the number of each cycle of scales is 72; a corresponding scale serial number is correspondingly arranged on each scale; and the sequence difference between the upper cycle of scales and the lower cycle of scales is 12 scales. The plug gauge is screwed in the internal threads of a first part, and a measurement value is recorded by taking the directional assembling point of the first part as reference; the phase angle of the directional assembling point of a second part is measured by the ring gauge; and finally the first part and the second part are matched for assembly according to the measurement value. Therefore, the assembly quality of the shaft can be improved.
Description
Technical field
The present invention relates to the petroleum drilling helicoid hydraulic motor, the particularly axis body assembled orientation of helicoid hydraulic motor universal shaft assembly check is a kind of specific purpose tool of checking the axis body of helicoid hydraulic motor universal shaft assembly.
Background technology
In the helicoid hydraulic motor that petroleum drilling is used, it is universal shaft assemblies that parts are arranged, and the main effect of helicoid hydraulic motor universal shaft assembly is to be used for transmitting moment of torsion, overcomes the planetary motion that rotor is produced in the stator die cavity, and the bent angle of eliminating the curved housing of universal shaft.What transmit moment of torsion in the universal shaft assembly is axis body.Consult Fig. 4.Axis body is made up of left flap valve 4, right flap valve 6 and connecting link 5.There is external thread at the two ends of connecting link 5, and the external thread at connecting link 5 two ends is connected with the internal thread of left flap valve 4 with right flap valve 6 ends respectively.The structure of left side flap valve 4 and right flap valve 6 is on the cylinder of joint, adopt wire cutting method that the joint cylinder is cut into two parts, two-part relative part has the circular arc body of mutual embedding, end in every part cutting is evenly distributed with three circular arc bodies, and promptly the central point of each circular arc body interval radian is 120 ° (the last vertex spacings radian of each circular arc body is 120 °).Axis body can not only transmit moment of torsion, can also play the effect of universal shaft.Axis body has been widely used in the helicoid hydraulic motor, and those skilled in the art know.
In the axis body assembling process,,, thereby play the mechanical property and the serviceable life of improving axis body with the dirigibility of increase axis body to having higher requirements between left flap valve 4 and the right flap valve 6 to parallactic angle.Adopt between the left flap valve 4 at connecting link 5 and two ends, the right flap valve 6 to be threaded, between the left flap valve 4 after assembling is finished and the right flap valve 6 is 30 ° to parallactic angle, promptly assembles to adhere to specification.
At present, for meeting the requirements to parallactic angle in the axis body assembling that guarantees the universal shaft assembly, existing assembly method is: left flap valve 4 is linked together with connecting link 5, take right flap valve 6 to carry out trial assembly; If undesirable to parallactic angle between back left flap valve 4 and the right flap valve 6 joined in trial assembly, then carry out trial assembly, meeting the requirements between left flap valve 4 and right flap valve 6 by other right flap valve 6 again to parallactic angle.If there is not suitable right flap valve 6 to be complementary, then need left flap valve 4 or right flap valve 6 are carried out the turning end face, but because what do not know should car go just can reach matching requirements, so turning end face by rule of thumb.And then trial assembly joins, until between the left flap valve 4 after the assembling and the right flap valve 6 till parallactic angle meets the requirements, the axis body of finishing the universal shaft assembly assembles.
Nonetheless repeatedly trial assembly is joined also and to be difficult to guarantee that left flap valve 4 and right flap valve 6 adhere to specification to parallactic angle; Frequently carrying out simultaneously trial assembly joins and is easy to take place " burning button " phenomenon.In addition, the complicated efficient of the work of above-mentioned assembly method is low, and labour intensity is big, and it is very low that the axis body of universal shaft assembly once assembles qualification rate.
Summary of the invention
The objective of the invention is: a kind of universal shaft threaded connection directional assembly gauge for screw drilling tool is provided, in the axis body assembling process of carrying out helicoid hydraulic motor universal shaft assembly, can utilize assembling rule left flap valve of prediction and right flap valve to the parallactic angle difference, take corresponding measure then, the axis body assembling of guaranteeing helicoid hydraulic motor universal shaft assembly is once qualified, improves the axis body assembly quality.
Another object of the present invention provides a kind of use universal shaft threaded connection directional assembly gauge for screw drilling tool, finish the axis body assembly method of helicoid hydraulic motor universal shaft assembly, once finish the axis body assembling of helicoid hydraulic motor universal shaft assembly, and make and reach designing requirement to parallactic angle between left flap valve and the right flap valve.
The technical solution used in the present invention is: universal shaft threaded connection directional assembly gauge for screw drilling tool, and main feeler gauge and ring gauge are formed, and it is characterized in that:
Described feeler gauge comprises cylinder bodily form index dial, on an end face of index dial cylindric handle is arranged, and on another end face of index dial the external thread body is arranged, and the external thread body has external thread.External thread by the external thread body can screw in feeler gauge on the internal thread of detected right flap valve end.Index dial center line and external thread body center line are on same straight line; At the index dial cylindrical outer surface one all scale marks are arranged, scale mark is 72, and the radian between the adjacent scale mark equates that corresponding scale sequence number numerical value is arranged on each scale mark, is called for short scale value.72 scale marks are divided into three groups, and every group of scale mark has scale value respectively.As 1,2,3,4 ... 22,23; Or 2,4,6 ... 20,24.
Described ring gauge is the annulus bodily form, and ring gauge has internal thread, can screw in ring gauge on the external thread of the detected connecting link end that links to each other with left flap valve by the ring gauge internal thread.At ring gauge torus outside surface two all scale marks are up and down arranged side by side, scale mark is 72 weekly, and the radian of adjacent two scale mark correspondences equates that promptly the camber line of scale mark distance equates, corresponding scale sequence number numerical value is arranged on each scale mark in two weeks, be called for short scale value.72 scale marks are divided into three groups weekly, and every group of scale mark has scale value respectively; And last week scale mark and next week corresponding scale mark the scale value difference be 12.As: a certain scale value of last week is 6, with last week scale value be that 6 the next week scale value of scale mark on same straight line is 18; And for example: a certain scale value of last week is 8, with last week scale value be that 8 the next week scale value of scale mark on same straight line is 20; The a certain scale value of last week is 10, with last week scale value be that 10 the next week scale value of scale mark on same straight line is 22, and the like.
Because in the testing process, determine reference point difference on the right flap valve, promising two kinds of 0 scale value on the ring gauge: the internal thread specification of the external thread of first kind of feeler gauge and ring gauge is identical, and after feeler gauge and ring gauge were tightened, 6 scale marks in a week were relative on 0 scale mark on the feeler gauge and the ring gauge; Next all scale 18 of 0 scale mark and ring gauge on the feeler gauge is relative simultaneously.The internal thread specification of the external thread of second kind of feeler gauge and ring gauge is identical, and after feeler gauge and ring gauge were tightened, 0 scale mark in a week was relative on 0 scale mark on the feeler gauge and the ring gauge; Next all scale 12 of 0 scale mark and ring gauge on the feeler gauge is relative simultaneously.
Relatively in other words: after feeler gauge and ring gauge were tightened, two scale marks were in same plane, and this plane is by the center line of feeler gauge and ring gauge.
In order to screw feeler gauge, on cylindric handle top transverse holes is arranged, be inserted with cylindrical handle in transverse holes.
The external thread specification of feeler gauge external thread body is identical with the internal thread specification of detected right flap valve; Ring gauge internal thread specification is identical with the external thread specification of the detected connecting link that is connected with left flap valve.
The principle of universal shaft threaded connection directional assembly gauge for screw drilling tool: helix is called pitch along the right cylinder distance that moves at axis direction that rotates a circle.The scale value computing method of assembling rule (assembling rule comprise: feeler gauge and ring gauge) are as follows:
Screw thread with part is
Interior flat button is example, and pitch is 6.35mm, and design is assembled the rule cylindrical and is divided into 72 equal portions.
1. every lattice scale is represented the calculating of thread spindle to distance value:
That is: the screw thread axial distance of each lattice correspondence of assembling rule is 0.088mm.
2. the calculating of every lattice angle value:
That is: the angle of each the lattice correspondence on the assembling rule is 5 °.
On the design feeler gauge main body external thread identical with right flap valve arranged, its circumference is divided into 72 lattice, if carry out series arrangement with 0-72, though can obtain to measure needed function, repeat a little but will occur one every 120 °, promptly 0,24,48,72 effect is identical in the reading value on the feeler gauge circumference, and is therefore corresponding mutually the unidirectional lobe number of reading value and part, with the reading value 0-72 part that classifies in three categories, corresponding 120 ° of every part of 24 scale lattice.
Ring gauge has and the tested identical internal thread in connecting link end that links to each other with left flap valve, the design feature of scale value and the design feature of feeler gauge are basic identical, but because oriented parallactic angle requirement in the assembly technology, as long as to parallactic angle can guarantee ± 30 ° on the position, just meet technological requirement fully, so utilize these characteristics will be designed on its circumference two ring scale and corresponding reading values up and down, and the reading values of two rings 60 ° of i.e. 12 lattice that stagger up and down.
The using method of universal shaft threaded connection directional assembly gauge for screw drilling tool of the present invention: the assembly method of promptly finishing the axis body of helicoid hydraulic motor universal shaft assembly:
Before the axis body of assembling helicoid hydraulic motor universal shaft assembly, should at first remove left flap valve, right flap valve and lip-deep burr of connecting link or salient point, and clean up.
A. feeler gauge being screwed in the internal thread of left flap valve and screw, is reference point with a circular arc body camber line summit on the left flap valve, writes down the scale value on the pairing feeler gauge of reference point on the left flap valve.
B. with the screwing in the internal thread of right flap valve end and screw of connecting link one end, ring gauge is screwed on the external thread of the connecting link other end and screw, a circular arc body camber line summit on the right flap valve is a reference point, reads the scale value on the ring gauge of reference point correspondence.Write down the scale value on the pairing ring gauge of reference point on the right flap valve.
When c. the scale value that writes down when the scale value of feeler gauge record and ring gauge is identical, the internal thread of tested left flap valve is connected with the external thread of the connecting link other end and screws; When the scale value of feeler gauge record inequality with the scale value of ring gauge record, the scale value that writes down on scale value that writes down on the calculating feeler gauge and the ring gauge poor.The internal thread end face of further extrapolating left flap valve should length of cut, adopt the internal thread end face of lathe grinding left side flap valve, the length that should cut be the difference of the scale value that writes down on scale value and the ring gauge of feeler gauge record multiply by every lattice scale representative thread spindle to distance value, the thread spindle that promptly every lattice scale is represented is the pitch of screw thread is counted gained divided by the scale lattice merchant to distance value.The internal thread of left flap valve after the processing is connected with the external thread of the connecting link other end and screws.Finish the assembly work of axis body.
Beneficial effect of the present invention: universal shaft threaded connection directional assembly gauge for screw drilling tool of the present invention, can improve the assembling qualification rate of axis body.
(1) practical, designed scale value intuitively, the reading value by feeler gauge and ring gauge mates workpiece.
(2) two ring reading values have increased washability about the ring gauge, have removed trial assembly process repeatedly from, have reduced the repair rate of working strength of workers and part.
(3) the threaded connector directional assembly gauge can be used for the assembling of various different model axis bodies, reaches more accurately to the parallactic angle technological requirement, has increased substantially the assembly quality and the assembling qualification rate of axis body.
(4) the subtend parallactic angle quantizes, after accurate numerical value when can obtain to reprocess and the assembling by measuring to the parallactic angle error amount, improved production efficiency.
Description of drawings
Fig. 1 a is feeler gauge 2 structural representations of universal shaft threaded connection directional assembly gauge for screw drilling tool.
Fig. 1 b is ring gauge 3 structural representations of universal shaft threaded connection directional assembly gauge for screw drilling tool.
Fig. 2 utilizes feeler gauge 2 to detect the scale value synoptic diagram of left flap valve 4.
Fig. 3 utilizes ring gauge 3 to detect the scale value synoptic diagram of right flap valve 6.
Fig. 4 is an axis body synoptic diagram of finishing the helicoid hydraulic motor universal shaft assembly after the assembling.
Fig. 5 a is that the scale mark on feeler gauge 2 and the ring gauge 3 launched synoptic diagram after feeler gauge 2 screwed with ring gauge 3, the corresponding relation of expression scale value.
Fig. 5 b is that the another kind of scale mark on feeler gauge 2 and the ring gauge 3 launched synoptic diagram after feeler gauge 2 screwed with ring gauge 3, the corresponding relation of expression scale value.
Among the figure, 1. handle, 2. feeler gauge, 3. ring gauge, 4. left flap valve, 5. connecting link, 6 right flap valves.
Embodiment
Embodiment 1: with a universal shaft threaded connection directional assembly gauge for screw drilling tool is example, and the present invention is described in further detail.
Consult Fig. 1 a and Fig. 1 b.Universal shaft threaded connection directional assembly gauge for screw drilling tool of the present invention mainly is made up of handle 1, feeler gauge 2 and ring gauge 3.
Consult Fig. 1 a.Feeler gauge 2 comprises cylinder bodily form index dial, and 20 millimeters of index dial thickness, diameter are 111.25 millimeters.On an end face of index dial, a cylindric handle is arranged, transverse holes is arranged, be inserted with cylindrical handle 1 in transverse holes on cylindric handle top.On another end face of index dial the external thread body is arranged, the external thread body has external thread.The external thread specification of feeler gauge 2 external thread bodies is identical with the internal thread specification of detected left flap valve 4, and specification is
Interior flat button.Index dial center line and external thread body center line are on same straight line; At the index dial cylindrical outer surface one all scales are arranged, scale is 72, and the radian between the adjacent scale equates.72 scale marks are divided into three groups, and every group of scale mark has scale value respectively.Corresponding scale sequence number is arranged on each scale.Scale sequence number: 0,2,4,6 ...
Consult Fig. 1 b.Ring gauge 3 is the annulus bodily form, and the external diameter of ring gauge 3 is 111.25 millimeters, 50 millimeters of thickness.Ring gauge 3 has internal thread.Ring gauge 3 internal thread specifications are identical with the external thread specification of the detected connecting link 5 that links to each other with left flap valve 4.Ring gauge 3 internal thread specifications are
Interior flat button.At ring gauge 3 torus outside surfaces two all scales are up and down arranged side by side, two all scale marks are on same straight line up and down, and scale is 72 weekly, and the radian of each scale equates on each scale mark in two weeks corresponding scale value is arranged.72 scale marks are divided into three groups weekly, and every group of scale mark has scale value respectively; And last week scale mark and next week corresponding scale mark the scale value difference be 12.As scale mark scale sequence number last week: 0,2,4,6 ..., and scale mark scale sequence number last week: 0,2,4,6 ... the all scale mark scales of Dui Ying next sequence number is 12,14,16,18 respectively ...Consult Fig. 5 a.All 6 scale marks are relative with 0 scale mark of feeler gauge 2 on the ring gauge 3, and ring gauge 3 next all 18 scale mark are relative with 0 scale mark of feeler gauge 2.
The using method of universal shaft threaded connection directional assembly gauge for screw drilling tool is:
Should remove lip-deep burr of measured piece or salient point before measuring, and clean up the measured piece surface.
A. feeler gauge 2 being screwed in the internal thread of a left flap valve 4 and screw, is reference point with a circular arc body camber line summit on the left flap valve 4, writes down the scale value on the pairing feeler gauge 2 of reference point on the left flap valve 4.
B. with in the right flap valve 6 end internal threads of screwing into of connecting link 5 one ends and screw, ring gauge 3 is screwed on the external thread of connecting links 5 other ends and screw, utilizing Steel Ruler is benchmark with a circular arc body camber line summit on the right flap valve 6, reads the scale value of the reference point correspondence on the ring gauge 3.Write down the scale value on the pairing ring gauge 3 of reference point on the right flap valve 6.
C. calculate the poor of scale value on the feeler gauge 2 and the scale value on the ring gauge 3.The scale value of measuring when feeler gauge 2 is identical with the scale value of ring gauge 3 measurements, the internal thread of tested left flap valve 4 is connected with the external thread of connecting link 5 other ends and screws, and finishes the assembly work of an axis body.
When the internal thread end face that utilizes universal shaft threaded connection directional assembly gauge for screw drilling tool to measure left flap valve 4 is not complementary, need to repair the internal thread end face of left flap valve 4, operating process:
When the scale value that feeler gauge 2 is measured inequality with the scale value of ring gauge 3 measurements, adopt lathe grinding left side flap valve 4 internal thread end faces, length of cut is 3 o'clock by the difference of the scale value that writes down on the scale value of feeler gauge 2 record and the ring gauge 3, the axial distance that every lattice scale representative is advised in known assembling is 0.088mm, then need face work 0.088 * 3=0.264mm, assemble after the turning and can reach matching requirements.In addition, can also utilize assembling to advise the angular error of calculating to parallactic angle, for example measurement result and reference point differ 3 scale lattice, and the angle that every lattice representative is advised in known assembling is 5 °, after assembling was finished so like this, calculating axis body was 5 * 3=15 ° to the error of parallactic angle.
Embodiment 2.Embodiment 2 with embodiment 1 difference is: consult Fig. 5 b.All 0 scale marks are relative with 0 scale mark of feeler gauge 2 on the ring gauge 3, and ring gauge 3 next all 12 scale mark are relative with 0 scale mark of feeler gauge 2.In addition, detect the reference point difference on the right flap valve 6, reference point on the right flap valve 6 adopts is the center line of two axis of camber line summit correspondence up and down.
Claims (5)
1. a universal shaft threaded connection directional assembly gauge for screw drilling tool mainly is made up of feeler gauge (2) and ring gauge (3), it is characterized in that:
Described feeler gauge (2) comprises cylinder bodily form index dial, on an end face of index dial, cylindric handle is arranged, on another end face of index dial the external thread body is arranged, the external thread body has external thread, and index dial center line and external thread body center line are on same straight line; At the index dial cylindrical outer surface one all scale marks are arranged, scale mark is 72, and the radian between the adjacent scale mark equates, corresponding scale sequence number numerical value is arranged on each scale mark, be called for short scale value, 72 scale marks are divided into three groups, and every group of scale mark has scale value respectively;
Described ring gauge (3) is the annulus bodily form, ring gauge (3) has internal thread, at ring gauge (3) torus outside surface two all scale marks are up and down arranged side by side, scale mark is 72 weekly, the radian of adjacent two scale mark correspondences equates that corresponding scale sequence number numerical value is arranged on each scale mark in two weeks, be called for short scale value, 72 scale marks are divided into three groups weekly, and every group of scale mark has scale value respectively; And the scale value difference of last one all scale marks and next all corresponding scale mark is 12.
2. universal shaft threaded connection directional assembly gauge for screw drilling tool according to claim 1, it is characterized in that: the external thread of feeler gauge (2) is identical with the internal thread specification of ring gauge (3), after feeler gauge (2) and ring gauge (3) were tightened, 6 scale marks in 0 scale mark on the feeler gauge (2) and a last week of ring gauge (3) were relative; 0 scale mark on the feeler gauge (2) is relative with next all scale 18 of ring gauge (3) simultaneously.
3. universal shaft threaded connection directional assembly gauge for screw drilling tool according to claim 1, it is characterized in that: the external thread of feeler gauge (2) is identical with the internal thread specification of ring gauge (3), after feeler gauge (2) and ring gauge (3) were tightened, 0 scale mark in 0 scale mark on the feeler gauge (2) and a last week of ring gauge (3) was relative; 0 scale mark on the feeler gauge (2) is relative with next all scale 12 of ring gauge (3) simultaneously.
4. according to claim 1,2 or 3 described universal shaft threaded connection directional assembly gauge for screw drilling tool, it is characterized in that: on cylindric handle top transverse holes is arranged, be inserted with cylindrical handle (1) in transverse holes.
5. according to claim 1,2 or 3 described universal shaft threaded connection directional assembly gauge for screw drilling tool, it is characterized in that: the using method of universal shaft threaded connection directional assembly gauge for screw drilling tool is:
A. feeler gauge (2) being screwed in the internal thread of left flap valve (4) and screw, is reference point with a circular arc body camber line summit on the left flap valve (4), writes down left flap valve (4) and goes up scale value on the pairing feeler gauge of reference point (2);
B. screwing in the internal thread of right flap valve (6) end and screw connecting link (5) one ends, ring gauge (3) is screwed on the external thread of connecting link (5) other end and screw, a circular arc body camber line summit on the right flap valve (6) is a reference point, read the scale value on the ring gauge (3) of reference point correspondence, write down right flap valve (6) and go up scale value on the pairing ring gauge of reference point (3);
When c. the scale value that writes down when the scale value of feeler gauge (2) record and ring gauge (3) is identical, the internal thread of tested left flap valve (4) is connected with the external thread of connecting link (5) other end and screws; When the scale value of feeler gauge (2) record inequality with the scale value that ring gauge (3) writes down, calculate scale value that feeler gauge (2) goes up record and ring gauge (3) and go up the poor of the scale value that writes down, the internal thread end face of further extrapolating left flap valve (4) should length of cut, adopt the internal thread end face of lathe grinding left side flap valve (4), the length that should cut is that the scale value of feeler gauge (2) record and the difference of the scale value that ring gauge (3) upward writes down multiply by the thread spindle of every lattice scale representative to distance value, the thread spindle that is every lattice scale representative is the pitch of screw thread is counted gained divided by the scale lattice merchant to distance value, the internal thread of left flap valve (4) after the processing is connected with the external thread of connecting link (5) other end and screws, finish the assembly work of axis body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101226628A CN101793491B (en) | 2010-03-03 | 2010-03-03 | Universal shaft threaded connection directional assembling gauge for screw drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101226628A CN101793491B (en) | 2010-03-03 | 2010-03-03 | Universal shaft threaded connection directional assembling gauge for screw drilling tool |
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| CN101793491A true CN101793491A (en) | 2010-08-04 |
| CN101793491B CN101793491B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101226628A Active CN101793491B (en) | 2010-03-03 | 2010-03-03 | Universal shaft threaded connection directional assembling gauge for screw drilling tool |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094630A (en) * | 2010-12-06 | 2011-06-15 | 中国石油集团西部钻探工程有限公司 | Portable angular difference measuring gauge |
| CN107421487A (en) * | 2017-06-06 | 2017-12-01 | 天津市津廊宏业工程机械液压设备有限公司 | A kind of thread parameter measurement device |
| CN111157159A (en) * | 2020-01-13 | 2020-05-15 | 宁波高新区琪明机械设备有限公司 | Oil seal radial force testing method |
| CN111774674A (en) * | 2020-08-03 | 2020-10-16 | 贵州航天精工制造有限公司 | Combined device for turning internal thread tool setting |
| CN113048854A (en) * | 2021-02-08 | 2021-06-29 | 天津大学 | Automatic measuring device and measuring method |
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| US4646831A (en) * | 1984-09-14 | 1987-03-03 | Develco, Incorporated | Precision connector for well instrumentation |
| CN2264802Y (en) * | 1996-11-29 | 1997-10-15 | 大港油田集团中成机械制造有限公司 | Screw drilling tool |
| JPH11210721A (en) * | 1998-01-27 | 1999-08-03 | Asahi Glass Co Ltd | Stringing material and truss structure using it |
| CN2624174Y (en) * | 2003-05-21 | 2004-07-07 | 中国重型汽车集团有限公司 | Inspection gauge for measuring geometric body fixing dimension |
| CN2702269Y (en) * | 2004-05-31 | 2005-05-25 | 宝山钢铁股份有限公司 | Gauge for special screw-threaded oil well pipes |
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| US4646831A (en) * | 1984-09-14 | 1987-03-03 | Develco, Incorporated | Precision connector for well instrumentation |
| CN2264802Y (en) * | 1996-11-29 | 1997-10-15 | 大港油田集团中成机械制造有限公司 | Screw drilling tool |
| JPH11210721A (en) * | 1998-01-27 | 1999-08-03 | Asahi Glass Co Ltd | Stringing material and truss structure using it |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094630A (en) * | 2010-12-06 | 2011-06-15 | 中国石油集团西部钻探工程有限公司 | Portable angular difference measuring gauge |
| CN102094630B (en) * | 2010-12-06 | 2014-02-19 | 中国石油集团西部钻探工程有限公司 | Portable angular difference measuring gauge |
| CN107421487A (en) * | 2017-06-06 | 2017-12-01 | 天津市津廊宏业工程机械液压设备有限公司 | A kind of thread parameter measurement device |
| CN111157159A (en) * | 2020-01-13 | 2020-05-15 | 宁波高新区琪明机械设备有限公司 | Oil seal radial force testing method |
| CN111157159B (en) * | 2020-01-13 | 2021-10-22 | 宁波高新区琪明机械设备有限公司 | Oil seal radial force testing method |
| CN111774674A (en) * | 2020-08-03 | 2020-10-16 | 贵州航天精工制造有限公司 | Combined device for turning internal thread tool setting |
| CN111774674B (en) * | 2020-08-03 | 2022-11-15 | 贵州航天精工制造有限公司 | Combined device for turning internal thread tool setting |
| CN113048854A (en) * | 2021-02-08 | 2021-06-29 | 天津大学 | Automatic measuring device and measuring method |
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| Publication number | Publication date |
|---|---|
| CN101793491B (en) | 2011-05-25 |
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